On the probability of observing Borda’s paradox

Previous studies have shown that, when voters’ preferences become more internally consistent or mutually coherent, the probability of observing Condorcet’s Paradox of cyclic majorities is reduced and tends to zero, in accordance with intuition. The current study shows that the impact of an increasing degree of mutual coherence among voters’ preferences on the likelihood of observing Borda’s Paradox is much more subtle and more difficult to analyze. The degree of the impact in this case depends both on the measure of mutual coherence that is considered and on the voting rule that is used. In some circumstances, the probability that Borda’s Paradox will occur actually increases when voters’ preferences become more internally consistent.     

Urban culture and physical and sports activities. The "sportification" of parkour and street golf as cultural mediation

The article explores the process of "sportification"--i.e., processing physical activity in a sport regulated by a set of rules and standards, legitimized by supervisory institutions--from two originals practices, parkour and urban golf. To study these practices, we crossed the contributions of urban sociology and of the contemporary sociology of sport while respecting the methodological principles of qualitative sociology. A first point concerns the process of"sport" itself, its definition, its various stages, and the role played by communication of stakeholders on public space. The cultural mediation shows us how to institutionalize the movement that represents the "sports" resulted in the same time reconfiguration of physical practices themselves. Recent events illustrate the ongoing reconfiguration, we will detail them. Finally, we show the effects produced by the process on the definition of urban culture and sports: setting sight of activities, enhanced cooperation with the media-cultural, polarization between different types of practical in the case of parkour, around a confrontation between two of the founders.     

Does the Public Sector Lead the Wage Evolution in the French Economy?

Has the wage policy of the State in the French public sector (government services and State owned enterprises) had a leading effect on wages in the private sector up until the early 1980s? This paper firstly aims at verifying the existence and analysing the causes of this leading effect. The second aim is to estimate the scope of the changes which took place from the early 1980s. It shows that the wage policy of the State did influence disinflation in the 1980s and early 1990s. Indeed, it not only slowed down the growth of wages in the public sector but, by this means, it also influenced indireclty the growth of wages in the private sector.     

Probabilities of electoral outcomes: from three-candidate to four-candidate elections

The main purpose of this paper is to compute the theoretical likelihood of some electoral outcomes under the impartial anonymous culture in four-candidate elections by using the last versions of software like LattE or Normaliz. By comparison with the three-candidate case, our results allow to analyze the impact of the number of candidates on the occurrence of these voting outcomes.

     

Sexuality and digital Space

Since the Internet's inception, sociologists have sought to understand the role digital spaces play in mediating communication, interaction, and its impact on the broader social world. Sociological literature at the intersection of sexuality and digital space presents a key area of inquiry, charting the generative, and sometimes utopian, aspects of sexuality's insertion into the virtual sphere, as well as the problems and drawbacks of this relationship. By drawing on select empirical studies, this article charts three dominant research strands on sexuality and digital space: (a) the influence of digital platforms in sexual selfhood projects; (b) macro‐level trends and micro‐level practices of desire, attraction, and dating online; and (c) the role of digital platforms in sustaining sexual subcultures. I propose additional approaches and lines of inquiry to further develop research in these areas.     

Intra-rater reliability of hip abductor isometric strength testing in a standing position in older fallers and non-fallers

Background

Reduced hip muscle strength has been shown to be a major factor related to falls in older persons. However, comprehensive assessment of hip abduction strength in the clinical setting is challenging. The aim of this study was to investigate the feasibility and intra-rater reliability of a quick and simple hip abductor strength test in a functional standing position.

Methods

Individuals over 65 years of age were recruited from the geriatric department of a university hospital and an outpatient clinic. Thirty-two older subjects, including 16 fallers (≥1 fall during the last 12 months) and 16 non-fallers were included. Maximum voluntary isometric strength (MVIS) and rate of force generation (RFG) of the hip abductors of the right leg were evaluated in a standing position using a hand-held dynamometer. Two test-sessions were carried out. All hip strength values were normalized to participants’ weight. Reliability was determined using the intra-class correlation coefficient agreement (ICC_agreement), the standard error of measurement (SEM) and a Bland and Altman analysis (BA).

Results

All participants completed the strength tests, which took a mean 2.47?±?0.49 min (one limb). Intra-rater reliability was higher for MVIS (0.98_{[0.95–0.99]}) than RFG (ICC?=?0.93_{[0.87–0.97]}) for the entire sample. In the non-fallers, ICC was 0.98_{[0.95–1.00]} (SEM?=?0.08 N.kg^??1) for MVIS and 0.88_{[0.75–0.96]} for RFG (SEM?=?1.34 N.kg^-1.s^-1). In the fallers, ICC was 0.94_{[0.89–0.98]} (SEM?=?0.11 N.kg^??1) for MVIS and 0.93_{[0.84–0.98]} (SEM?=?1.12 N.kg^??1.s^??1) for RFG. The BA plot showed that the MVIS and RFG values did not differ across test-sessions, showing that no learning effect occurred (no systematic effect). The mean differences between test-sessions were larger and the LOA smaller in the fallers than in the non-fallers.

Conclusion

Assessment of hip strength in a standing position is feasible, rapid and reliable. We therefore recommend this position for clinical practice. Future studies should investigate the diagnostic value of hip abductor strength in standing to discriminate between fallers and non-fallers, and to determine if change in strength following a falls prevention program reduces the risk of falls.

     

Trois scénarios pour l'avenir du travail

Après avoir rappelé l'histoire longue du concept de travail et les différentes significations attachées au terme au cours des siècles, l'auteure analyse le rapport des Européens à cette valeur, ainsi que les conséquences sur le travail et l'emploi du discours en vogue sur la révolution technologique et ses effets «inéluctables». Elle envisage ensuite l'avenir du travail à la lumière de trois scénarios, celui du «démantèlement du droit du travail», celui de la «révolution technologique» (qui postule la fin de l'emploi par l'automatisation) et celui de la «reconversion écologique», dernier modèle compatible avec l'impératif environnemental, mais aussi avec les attentes placées sur le travail et l'emploi.     

Pool size and the sustainability of optimal risk-sharing agreements

We study a risk-sharing agreement where members exert a loss-mitigating action which decreases the amount of reimbursements to be paid in the pool. The action is costly and members tend to free-ride on it. An optimal risk-sharing agreement maximizes the expected utility of a representative member with respect to both the coverage and the (collective) action such that efficiency is restored. We study the sustainability of the optimal agreement as equilibrium in a repeated game with indefinite number of repetitions. When the optimal agreement is not enforceable, the equilibrium with free-riding emerges. We identify an interesting trade-off: welfare generated by the optimal risk-sharing agreement increases with the size of the pool, but at the same time the pool size must not be too large for collective choices to be self-enforcing. This generates a discontinuous effect of pool size on welfare.     

Women Left Behind? Poverty and Headship in Africa

Two stylized facts about poverty in Africa motivate this article: female-headed households tend to be poorer, and poverty has been falling in the aggregate since the 1990s. These facts raise two questions. First, how have female-headed households fared? Second, what role have they played in Africa’s impressive recent aggregate growth and poverty reduction? Using data covering the entire region, we reexamine the current prevalence and characteristics of female-headed households and ask whether their prevalence has been rising, what factors have been associated with such changes since the mid-1990s, and whether poverty has fallen equiproportionately for male- and female-headed households. Lower female headship is associated with higher gross domestic product. However, other subtle transformations occurring across Africa—changes in marriage behavior, family formation, health, and education—are positively related to female headship, resulting in a growing share of female-headed households. This shift has been happening alongside declining aggregate poverty incidence. However, rather than being left behind, female-headed households have generally seen faster poverty reduction. As a whole, this group has contributed substantially to the reduction in poverty despite their smaller share in the population.